npm install fails when using npm 7

[lilleyse]

$ npm -v
7.15.1
$ node -v
v16.3.0

$ npm install
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! While resolving: [email protected]
npm ERR! Found: [email protected]
npm ERR! node_modules/rollup
npm ERR!   dev rollup@"^2.22.1" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer rollup@">=0.66.0 <2" from [email protected]
npm ERR! node_modules/rollup-plugin-uglify
npm ERR!   dev rollup-plugin-uglify@"^6.0.3" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR! 
npm ERR! See /home/slilley/.npm/eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/slilley/.npm/_logs/2021-06-22T18_29_05_270Z-debug.log

npm install --legacy-peer-deps is a workaround. See https://stackoverflow.com/a/66035709

[e3dio]

Duplicate Related #9467 #9129

PR #9214

[lilleyse]

Thanks @e3dio I continued the conversation in #9214

[ggetz]

Ran into this problem but was able to remove all packages, clean the npm cache, and re-install without issue.

@lilleyse Is there anything actionable left in this issue after #9828, or can it be closed?